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Learning objective

Balance and analyze simple symbol equations, including those with state symbols.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceStoichiometryCore content

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Quick explanation

Balance and analyze simple symbol equations, including those with state symbols

  • This point belongs to Formulas, especially Formulas outcomes.
  • You need to be able to balance and analyze simple symbol equations, including those with state symbols.
  • The key ideas to know are Evaluate.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Evaluate

Why it matters

This objective helps connect Formulas outcomes to exam-style questions, flashcards, and revision notes for Formulas.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 3 structured question: Formulas

Paper 3Theory (Core)3 marks

Description

Balancing the Reaction

Consider the unbalanced equation for the combustion of propane: C3H8 + O2 → CO2 + H2O.

  1. a

    Analyse Balance the equation for the combustion of propane.

    Aim for approximately 3 distinct marking points.

    [3]
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